●Which of the following elements can be called the key element of a computer?（71）
（71）A．printer B．CPU C．mouse D．keyboard

●The （72） has several major components, including the system kernel, a memory management system, the file system mana

●Which of the following elements can be called the key element of a computer?（71） 
（71）A．printer    B．CPU     C．mouse     D．keyboard
 
●The （72） has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries.（72）A. application            B. information system
C. operating system       D. iterative
 
●Which of the following is not part of the quality assurance process?（73） 
（73）A．Operational definitions          B．Quality policy          C．Quality audits          D．Quality improvement
 
●Which of the following is not part of a modern quality management concept?（74） （74）A．Performance standard is zero defects
B．Quality must be inspected in
C．85% of failures occur because of the process, not the worker
D．Quality is a 4 cycle process – plan/do/check/act

 ●Each box is an activity; the number it contains is the duration of the activity in days. The duration of the critical path is （75） .
（75）A．16 days   B．14 days     C．19 days     D．20 days